Madam Mim not only has Rush, which allows her to challenge on the turn shes played, she also has Chasing the Rabbit ability, which requires a player to either banish Madam Mim immediately from play or return another character to their hand
As a green creature, it can be very powerful, especially with lands-matter commanders or landfall commanders that run a higher-than-average number of lands
The art piece, illustrated by Raymond Swanland, is affixed with the logo for Lost Caverns of Ixalan
Desert of the Indomitable Taps for a blue, cycles for a blue and a colorless
Once wet, the treaded dirt road became a sticky mud that threatens to pull your boots right off your feet, making every step labored